Video Experimental Relacionado

Updated: Feb 20, 2026

Isolation and Characterization of the Natural Microbiota of the Model Nematode Caenorhabditis elegans

Isolation and Characterization of the Natural Microbiota of the Model Nematode Caenorhabditis elegans

Published on: August 17, 2022

Una comunidad bacteriana sintética endógena mitiga la toxicidad del nitrito en camarones

Yongming Wang¹, Yi Shu¹, Weipeng Zhang²

¹Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya, China; MOE Key Laboratory of Marine Genetics & Breeding and College of Marine Life Sciences, Ocean University of China, Qingdao, China.

Ecotoxicology and environmental safety

|February 18, 2026

Resumen

Un novedoso consorcio probiótico, que presenta la cepa Tenacibaculum LvS229, aumenta significativamente la supervivencia de los camarones frente a la toxicidad del nitrito. Este probiótico reduce el nitrito, alivia el estrés oxidativo y mejora las respuestas inmunitarias para una mayor resiliencia de la acuicultura.

Área de la Ciencia:

Acuicultura
Microbiología
Ciencias Ambientales

Sus antecedentes:

La cría intensiva de camarones provoca la acumulación de nitrito, lo que provoca una mortalidad significativa de los camarones.
La toxicidad del nitrito presenta un desafío importante para los sistemas de acuicultura sostenibles.

Objetivo del estudio:

Investigar las comunidades bacterianas intestinales en camarones expuestos a nitrito.
Desarrollar y evaluar un consorcio probiótico endógeno para mejorar la resiliencia de los camarones al estrés por nitrito.

Principales métodos:

Análisis de la microbiota intestinal en camarones supervivientes y fallecidos después de la exposición al nitrito.
Aislamiento y cribado de cepas bacterianas para formar un consorcio probiótico.
Estudios de colonización y ensayos genómicos/metabólicos de cepas probióticas clave.

Principales resultados:

Un consorcio de 17 cepas mejoró significativamente la supervivencia de los camarones bajo estrés por nitrito.
La cepa Tenacibaculum LvS229 demostró una colonización intestinal y efectos protectores superiores.
LvS229 posee genes de nitrito-reductasa, reduce el nitrito, alivia el estrés oxidativo y mejora las actividades inmunitarias y antioxidantes del huésped.

Conclusiones:

El consorcio probiótico desarrollado, en particular Tenacibaculum LvS229, ofrece una estrategia prometedora para mitigar la toxicidad del nitrito en la acuicultura de camarones.
Este enfoque probiótico mejora la resiliencia del huésped al abordar la reducción del nitrito, el estrés oxidativo y la función inmunitaria.

Palabras clave:

Consorcio bacteriano endógeno Comunidad bacteriana intestinal Toxicidad por nitrito Penaeus vannamei

Más Videos Relacionados

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities

Published on: December 25, 2015

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

Videos de Conceptos Relacionados

Metabolism of Chemolithotrophs

Metabolism of Chemolithotrophs

Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.

Inorganic Nitrogen Assimilation

Inorganic Nitrogen Assimilation

Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...

Overview of Nitrogen Metabolism

Overview of Nitrogen Metabolism

Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...

Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

Microbial Nutrition

Microbial Nutrition

Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...

Environmental Applications of Microorganisms

Environmental Applications of Microorganisms

Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...